As weird as it sounds, I like to play the other side in RPG stories, or at least, design how to play.
In old MERP PCs could be of the Middle Earth evil races (orcs, half-orcs, uruks, trolls, half-trolls and ologs). As it happened with more normal races, those weren't balanced (a Noldo elf being much better than a human).
When I have thought of making the races available in other systems (like Decipher's Lord of the Rings or The One Ring) I always find the problem of balancing. Since all races are balanced in those games, I'd like to make those races also balanced, but I don't know why, since uruks seem to be way better than orcs (sunlight resistant, stronger and even smarter).
I know those games aren't designed for evil characters, that you are supposed to play heroes and such. I don't care. What I want to know is: how would you balance orcs and uruks if you had to, in any game? Which advantages would you give to orcs or what disadvantage would uruks have?